Finding the Third Proportional to 303,726 and 480,328.50

Step by Step Solution

1. Step 1: Write the proportion equation
   303,726 : 480,328.50 = 480,328.50 : x
2. Step 2: Convert to fraction form
   303,726/480,328.50 = 480,328.50/x
3. Step 3: Cross multiply
   303,726x = 480,328.50 × 480,328.50
4. Step 4: Simplify right side
   303,726x = 230,715,467,912.25
5. Step 5: Solve for x
   x = 230,715,467,912.25/303,726
6. Step 6: Final answer
   x = 759,617.12